Results 71 to 80 of about 8,873 (246)

New records of Dictyopsocus pennicornis (Burmeister) (Psocodea 'Psocoptera': Psocidae: Psocinae)

open access: yesEntomoBrasilis, 2017
. First records of Dictyopsocus pennicornis (Burmeister), in the northeastern Brazilian states of Bahia, Ceará and Paraíba, are presented, with biogeographic comments.
João Alves Oliveira   +3 more
doaj   +1 more source

Human Health Risk Assessment From Exposure to Toxic Metals in Soils and Leafy Vegetables in Smallholder Farms of Northeastern Brazil

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT This study assessed human health risks associated with exposure to potentially toxic metals (PTMs) in soils and leafy vegetables cultivated in smallholder agricultural systems in Northeastern Brazil. Soil and vegetable samples were collected from 18 agricultural areas and analyzed for cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), nickel
Fernando Ferreira da Cunha Filho   +5 more
wiley   +1 more source

Knowledge, Attitudes, and Practices of Dental Students on Pulp Sensitivity Tests and Diagnostic Tools

open access: yesJournal of Dental Education, EarlyView.
ABSTRACT Objective To investigate the knowledge of Brazilian dental students about pulp sensitivity tests (PSTs), their attitudes concerning their aptitude for performing different diagnostic tools (DTs), and how frequently these DTs are practiced in clinical scenarios involving asymptomatic teeth.
Camila Leão de Azevedo Pereira   +5 more
wiley   +1 more source

Metabolic syndrome in elderly from a northeastern brazilian city

open access: yesInternational Archives of Medicine, 2015
Introduction: Population aging is a global reality. In Brazil, it is so expressive and in 2050 is estimated that the number of men and women over 80 years old can overcome the 20-24 years old population and also children under 14 years old. Metabolic syndrome is defined as a set of cardiovascular risk factors, detection and intervention in this age ...
openaire   +2 more sources

Evapotranspiration Profiles and Trends in Seasonally Dry and Seasonally Humid Tropical Forests

open access: yesInternational Journal of Climatology, EarlyView.
Moisture availability and vegetation are decisive factors in ET variations, which are greater in the Atlantic Forest. Precipitation contributes positively to ET variations (r = 0.20–0.67). Significant trends (p < 0.05) in ET were identified, with opposing patterns.
Lucas de Morais Teixeira   +5 more
wiley   +1 more source

Heat and Cold Waves in Brazil: An ERA5‐Based Analysis of Trends and Seasonality (1980–2024)

open access: yesInternational Journal of Climatology, EarlyView.
This study uses ERA5 reanalysis data to assess changes in extreme heat and cold events across Brazil from 1980 to 2024. Results reveal a sharp increase in heatwave frequency and a general decline in coldwave occurrences, though regional variations are substantial.
Alindomar Lacerda Silva, Scott Sheridan
wiley   +1 more source

Patrimonialisation du biome de las Caatinga : imaginaires paysagers en changement dans le semi-aride brésilien

open access: yesVertigO, 2013
The caatinga biome presents a typical landscape of the dry hinterland of northeastern Brazil, constituting a region called sertão, where a tropical semiarid climate predominates.
Caio Augusto Amorim Maciel
doaj   +1 more source

Seasonal Variability of Precipitating Systems in Four Radar Domains of Northeast Brazil

open access: yesInternational Journal of Climatology, EarlyView.
This study analyzes the climatology and evaluates how the physical aspects of precipitating systems are influenced by the dry and wet seasons in Northeast Brazil, highlighting seasonal variations in the frequency, size, intensity, and duration of these systems in the regions of Natal, Maceió, Petrolina, and Salvador.
Amanda Carolina da Silva Queiroz   +1 more
wiley   +1 more source

The subgenus Migonemyia Galati 1995 (Diptera, Psychodidae, Phlebotominae), with description of a new species Migonemyia vaniae: a review

open access: yesMemorias do Instituto Oswaldo Cruz, 2007
The capture of a new species of the subgenus Migonemyia Galati, 1995 (Diptera, Psychodidae, Phlebotominae), Migonemyia vaniae sp. nov. in the Ribeira Valley, state of São Paulo, Brazil, together with the other two species: Mg.
Eunice A Bianchi Galati   +2 more
doaj  

Fishes from the Itapecuru River basin, State of Maranhão, northeast Brazil

open access: yesBrazilian Journal of Biology
The Itapecuru is a relatively large river in the northeastern Brazilian state of Maranhão. During several expeditions to this basin, we collected 69 fish species belonging to 65 genera, 29 families and 10 orders.
MC Barros, EC Fraga, JLO Birindelli
doaj   +1 more source

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